Full list of all 65 RAGE 2 (Windows) achievements worth 1,435 gamerscore. It takes around 50-60 hours to unlock all of the achievements in the base game.
The base game contains 47 achievements worth 1,045 Gamerscore, and there are 2 DLC packs containing 18 achievements worth 390 Gamerscore.
Killed 5 enemies in a row without reloading using the Assault Rifle
70 shots fired within 16 seconds using the Assault Rifle
Hit an airborne enemy with the Shotgun's Slug Shot
Killed 2 enemies with one Hyper-Cannon shot
Killed 200 enemies with the Rocket Launcher
Overdrive multiplier of 10 reached
Killed 10 enemies with the Dash Strike kick
Crushed 50 enemies using Slam
Killed 3 enemies within 10 seconds after restoring all health with the Defibrillation
Used Wingstick to headshot 100 enemies
Killed an enemy with a Turret Drone explosion
Killed 13 enemies while riding ziplines
Killed 1337 Goons
Killed a cloaked Shrouded enemy
Killed an enemy trying to kill an enemy
Destroyed 128 Vehicles while driving the Phoenix
Killed an Abadon Mutant Crusher with the Phoenix
Maintained top speed for 10 seconds with the Raptor
Drove over 9000 meters
Jumped over 100 meters with a ground vehicle
Knocked 19 bikers off their bikes with the Phoenix's Dodge
Blew up a Goon with the Goon tank Booma
Completed mission: The Ranger
Completed mission: Blackout
Completed mission: The Signal
Completed mission: Wasteland Celebrity
Completed mission: Beneath the Surface
Completed mission: Ground Control
Completed mission: Double Cross
Completed mission: Project Dagger
Collected all other achievements
Killed 7 Abadon Mutant Crushers
Reflected an enemy's grenade
Took down 1 Convoy Leader
Completed the Torn Plains Race under 3:03
Scooped up an enemy with the Dumper Truck
Completed 5 Arks
Popped 17 Balloons
Destroyed 30 Spy Drones
Ventured inside the Dune Sea EcoPod
Travelled to the summit of the Broken Tract EcoPod
Visited the Wetlands EcoPod
Traversed the bridge to the EcoPod in the Wilds
Visited every Trade Coalition settlement
Completed the game on Nightmare Difficulty
Completed the game on Ultra Nightmare Difficulty
Completed the game in Ironman Mode
Completed mission: Captive
Completed mission: Within the Walls
Completed mission: Slaughter to the Lamb
Completed mission: Means to an End
Visited the Overgrown City EcoPod
Completed the Recondite Ark location
Completed the Bendring Ark location
Completed the Reclaim & Rebuild Project
Activated all Air Drops in Overgrown City
Completed all Ghost Sanctuaries in Overgrown City
Completed Bonetower: Hellspring
Completed Bonetower: Sensus
Completed Bonetower: Veritas
Completed Bonetower: Tristitia
Completed Bonetower: Furorem
Returned the NECRODISC and stopped the Skeletal Army
Killed 100 Skeletons with the Sword of Transitus
Killed 25 airborne Skeletons with the Sword of Transitus